allow you to downgrade an A7 device (like the iPhone 5s) to versions between iOS 7 and iOS 11 without SHSH blobs. However, because they bypass the Secure Enclave Processor (SEP) , several key features will be non-functional: will not work. Wi-Fi passwords may not be saved between reboots.
There are three ways to downgrade an iPhone 5s to iOS 7. Only one works perfectly. The others are for developers and hackers. Downgrade Iphone 5s To Ios 7
Only for hobbyists. Not for a daily driver. allow you to downgrade an A7 device (like